VDB-7199 · XFDB 80750 · BID 57002

Microsoft Internet Explorer 8/9 mshtml.dll Unclosed Tags Sequence denial of service ⚔ [Disputed]

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Internet Explorer 8/9 and classified as problematic. Impacted is an unknown function in the library mshtml.dll. The manipulation with the input <table></for xmlns="1">… as part of Unclosed Tags Sequence leads to denial of service. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The presence of this vulnerability remains uncertain at this time.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 8/9 (Web Browser). It has been rated as problematic. This issue affects an unknown part in the library mshtml.dll. The manipulation with the input value <table></for xmlns="1">… leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The issue has been introduced in 03/05/2008. The weakness was shared 12/20/2012 by Jean Pascal Pereira with 0xffe4 as Microsoft Internet Explorer 9.x <= Remote Stack Overflow Vulnerability as not defined mailinglist post (Bugtraq). It is possible to read the advisory at seclists.org. The vendor was not involved in the public release. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK. OSVDB critizises: "The original report appears to conclude that the described crash is 'exploitable' solely based on use of the !exploitable Crash Analyzer, part of the MSEC Debugger Extensions (http://msecdbg.codeplex.com/). Use of a crash analyzer without additional research in determining the existance of a vulnerability and ist exploitability is prone to false positives, sometimes flagging a crash as 'exploitable' that is not so."

A public exploit has been developed by Jean Pascal Pereira and been published immediately after the advisory. The exploit is available at seclists.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1751 days. During that time the estimated underground price was around $5k-$25k. The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (80750), SecurityFocus (BID 57002†) and OSVDB (88539†). packetstormsecurity.org is providing further details. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Jean Pascal Pereira
Reliability: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

03/05/2008 🔍
12/19/2012 +1750 days 🔍
12/20/2012 +1 days 🔍
12/20/2012 +0 days 🔍
12/23/2012 +3 days 🔍
04/07/2017 +1566 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: Microsoft Internet Explorer 9.x <= Remote Stack Overflow Vulnerability
Researcher: Jean Pascal Pereira
Organization: 0xffe4
Status: Not defined
Confirmation: 🔍
Disputed: 🔍

GCVE (VulDB): GCVE-100-7199
X-Force: 80750 - Microsoft Internet Explorer denial of service, Medium Risk
SecurityFocus: 57002 - Microsoft Internet Explorer Crafted HTML Stack Overflow Denial of Service Vulnerability
OSVDB: 88539

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍

Entryinfo

Created: 12/23/2012 09:14
Updated: 04/07/2017 12:02
Changes: 12/23/2012 09:14 (60), 04/07/2017 12:02 (9)
Complete: 🔍
Cache ID: 216:F41:103

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